14.7% all-small-molecule organic solar cells enabled with fullerene derivative incorporation

2021 ◽  
Author(s):  
Hu Dingqin ◽  
Hua Tang ◽  
Haiyan Chen ◽  
Jie Lv ◽  
Shirong Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Fullerene Derivative ◽  
Photovoltaic Properties

Ternary strategy is promising to enhance the photovoltaic properties of organic solar cells (OSCs). Nevertheless, it is full of challenging when this approach involving only small molecule. Herein, a fullerene...

scholarly journals Star-shaped and linear π-conjugated oligomers consisting of a tetrathienoanthracene core and multiple diketopyrrolopyrrole arms for organic solar cells

2016 ◽  
Vol 12 ◽  
pp. 1459-1466 ◽  
Author(s):  
Hideaki Komiyama ◽  
Chihaya Adachi ◽  
Takuma Yasuda
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Fullerene Derivative ◽  
Conjugated Oligomers ◽  
Visible Absorption ◽  
Photovoltaic Properties ◽  
Wide Range ◽  
Visible Wavelengths

Solution-processable star-shaped and linear π-conjugated oligomers consisting of an electron-donating tetrathienoanthracene (TTA) core and electron-accepting diketopyrrolopyrrole (DPP) arms, namely, TTA-DPP4 and TTA-DPP2, were designed and synthesized. Based on density functional theory calculations, the star-shaped TTA-DPP4 has a larger oscillator strength than the linear TTA-DPP2, and consequently, better photoabsorption property over a wide range of visible wavelengths. The photovoltaic properties of organic solar cells based on TTA-DPP4 and TTA-DPP2 with a fullerene derivative were evaluated by varying the thickness of the bulk heterojunction active layer. As a result of the enhanced visible absorption properties of the star-shaped π-conjugated structure, better photovoltaic performances were obtained with relatively thin active layers (40–60 nm).

Influence of the replacement of alkoxyl with alkylthienyl on photovoltaic properties of two small molecule donors for organic solar cells

2017 ◽  
Vol 60 (10) ◽  
pp. 1340-1348 ◽  
Author(s):  
Shaoqing Zhang ◽  
Liyan Yang ◽  
Delong Liu ◽  
Chang He ◽  
Jianqi Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Photovoltaic Properties

scholarly journals Enhancement of charge transport properties of small molecule semiconductors by controlling fluorine substitution and effects on photovoltaic properties of organic solar cells and perovskite solar cells

2016 ◽  
Vol 7 (11) ◽  
pp. 6649-6661 ◽  
Author(s):  
Jae Hoon Yun ◽  
Sungmin Park ◽  
Jin Hyuck Heo ◽  
Hyo-Sang Lee ◽  
Seongwon Yoon ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Transport Properties ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Perovskite Solar Cells ◽  
Photovoltaic Properties ◽  
Fluorine Substitution ◽  
Molecular Semiconductor

Effects of fluorine substitution of small molecular semiconductor on charge transport and photovoltaic properties are systematically studied.

Small molecule carbazole-based diketopyrrolopyrroles with tetracyanobutadiene acceptor unit as a non-fullerene acceptor for bulk heterojunction organic solar cells

2017 ◽  
Vol 5 (7) ◽  
pp. 3311-3319 ◽  
Author(s):  
Yuvraj Patil ◽  
Rajneesh Misra ◽  
M. L. Keshtov ◽  
Ganesh D. Sharma
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Conjugated Polymer ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Photovoltaic Properties ◽  
Highly Efficient

Herein, we investigated the photovoltaic properties of carbazole-based diketopyrrolopyrroles with tetracyanobutadiene acceptor units as highly efficient non-fullerene acceptors together with a D–A conjugated polymer, P, as a donor for polymer solar cells.

Photovoltaic properties dependance on the active layer morphology of small molecule organic solar cells

2006 ◽  
Author(s):  
Roshanak Radbeh ◽  
Bernard Ratier ◽  
Wassim Hojeij ◽  
Benoit Brousse ◽  
André Moliton
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Photovoltaic Properties

A complementary absorption small molecule for efficient ternary organic solar cells

2016 ◽  
Vol 4 (14) ◽  
pp. 5288-5293 ◽  
Author(s):  
Liangang Xiao ◽  
Ke Gao ◽  
Yangdong Zhang ◽  
Xuebin Chen ◽  
Lintao Hou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Ternary System ◽  
Band Gap ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Photovoltaic Properties ◽  
Low Band Gap

We successfully developed a ternary system by introducing a low band gap material of DPPEZnP-O into a PTB7 : PC71BM blend to improve the photovoltaic properties of BHJ solar cells.

Toward high performance indacenodithiophene-based small-molecule organic solar cells: investigation of the effect of fused aromatic bridges on the device performance

2016 ◽  
Vol 4 (6) ◽  
pp. 2252-2262 ◽  
Author(s):  
Jin-Liang Wang ◽  
Fei Xiao ◽  
Jun Yan ◽  
Kai-Kai Liu ◽  
Zheng-Feng Chang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Device Performance ◽  
Photovoltaic Properties

Here we report the synthesis of a pair of D1–A-bridge–D2-bridge–A–D1 type small molecules, which have different π-conjugated bridges and investigated the effects on their photovoltaic properties.

scholarly journals Effect of 4-biphenyl groups on the charge transport and photovoltaic properties of arylamine based push–pull systems

2020 ◽  
Vol 44 (27) ◽  
pp. 11441-11447 ◽  
Author(s):  
Pablo Simón Marqués ◽  
José María Andrés Castán ◽  
Pierre Josse ◽  
Martin Blais ◽  
Amir Hossein Habibi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Fill Factor ◽  
Power Conversion ◽  
Photovoltaic Properties ◽  
Pull Systems ◽  
Planar Heterojunction ◽  
Conversion Efficiencies

The synthesis of two N,N-bis(4-biphenylyl)aniline (BPA) based push–pull is reported herein. Evaluation as donor materials in all-small-molecule planar-heterojunction organic solar cells lead to impressive fill factor (>73%) and promising power conversion efficiencies.

scholarly journals Tuning of a A–A–D–A–A-Type Small Molecule with Benzodithiophene as a Central Core with Efficient Photovoltaic Properties for Organic Solar Cells

ACS Omega ◽  
2021 ◽  
Author(s):  
Urwah Azeem ◽  
Rasheed Ahmad Khera ◽  
Ayesha Naveed ◽  
Muhammad Imran ◽  
Mohammed A. Assiri ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Central Core ◽  
Photovoltaic Properties
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